Hi there!
When my beardie was young, I gave him anywhere to 12-20 crickets daily along with collard greens.
And about the mealworms and suerworms. I personally don't feed mealworms because of the dangers of it. But superworms are fine. But I would wait till your beardie is close to an adult to feed them because they are large and have a hard outer shell. Some good options for babies are silkworms, wax worms, phoenix worms, and Dubia roaches.
Hope I helped